Stove



2 Sheets-Sheet l W. NAGLE Oct. Il, 1932,

sTovE ,Filed Jan. 8. 1950 W- NAGLE STOVE @QL 1i,

Filed Jan, 8, 1950 2 Sheets-Sheet 2 /J I 5M( K ZNVENTQR MAK/ff Na7/e Patented Oct. 11, 1932 illdlpil ATE VIALTER NAGLEe F lBELLVIILE, ILL'INOIS, `ASSIGNOIEL TO BAKER EAGLE COMPANY,

0F BELLEVILLE, LLIVNOIS, .A CORPORATON OF DELAWARE STOVE Application filed January 8, 1930. Serial No. 419,285.

rhis invention relates to new anduseful improvements in portable heating stoves of the type having an ornamental outer casing or unit and an inner unit spaced from the first unit so as to provide air circulating passages therebetween.

rl`he 'objects of the present invention are to provide an inner unit having a comparatively large combustion vclizmiber provided with a dome top and having the flue outletdisposed on a horizontal plane below said dome top so as to allow gases collected ktherein to be consumed before reaching said flue outlet.

@ther objects'of the invention are to provide aportable heater having asectional fire boi; insertable into the fire chamber ofthe inner unit in spaced relation with the walls of the latten-said fire box being provided above the lire level with plurality of air -openingsthrcughwhich heated air is ladmitted from between the spaced walls to the combustion chamber to facilitate the combus-V provide a portable heating stove of air circulating type comprising an outer ornamental unit and an inner combustion unit, said units being arranged in spaced relation to provide air circulating passages, the walls of the inner unit being formed section al and being provided on opposite sides with ribs arranged in staggered relation to reinforce said Wall sections and to prevent warpage and breakage and permit the use of compare atively thin walls, thereby increasing the radiation capacity thereof.

W ith these and other ob]ects-1n view, my invention consists in certain novel features of construction and arrangement of parts,

hereinafter more fully described and claimed, y

and illustrated in the accompanying drawmgs, in which- `Figure 1 is a perspective view of my improved portable stove.

Figure 2 is a vertical cross section taken through the same. n

Figure 3 is a vertical cross section taken at right angles to Figure2. Y

Figures is a horizontal cross section taken on line 1 4 of Figure 3.

Figure 5 is a horizontal cross on line 5 5 of'Figure 3.

Figure 6 is anen'larged detail cross section of one of the ribbed sections.

The heating stove to which the present invention appertains is of the air circulating portable type having an-outer ornamental unit or casing 10 and an inner or combustion unit 11. other to provide vertically disposed air chambers 12 in which the air is heated and rises upwardly.y

The outer unit lO'is supported by a base 13 having legs 14 and the inner unit 11 is supported by a bottom frame 15, the outer section taken 'edge lof which rests on base 13.'- The bottom frame 15 is provided with a series of vertical ly disposed openings 16 through which air isaclinit'ted into the chambers 12.

The inner unit 11 consists of afrontY wall '1 7 'a' rear wall 18, and sidewalls 19. The lower edge of each ofsaid walls rests in the outwardly` and upwardly lpresented seat formed in the upwardly presented flange 15 lof base 15. f y

One of theside walls 19 is provided with a fire door opening 2O closed by a fire `door 21 hinged on the corresponding wall of the outer unit 10. Below said fire door opening is formeda similar opening 22 which leads into These units vare spaced from each ,Y

the ashpit 23 of the Vinner unit and is closed by 'a door 24 also hinged on the respective side wall of the outer casing. The openings 2O and 22 are flanged, the flanges extending 9 Vzontally and projects inwardly into said unit.

provided with vertically disposed ribs 27 arranged on both sides of the walls and staggered so that the ribs of one side are disposedv intermediate the ribs of the other side. This arrangement reinforces the fire box sections and Yalso increases the radiation capacity thereof. The fire box is supported in posi-v tion by means of horizontally and outwardly projecting flanges26b which are formed 1ntegral with the upper edges of the walls of said lire boxand rest upon the flaifiges`25V of the respective walls of the inner unit. The Y lower edges of said lire box support a grate' 28 which is removable so that gratesfor use with different kinds of fuels can be used.`

The walls of the fire box arespaced from the walls ofthe inner unit7 being inclined downwardly and inwardly frometheir upper i edges to provide air'chambers 29.I` Each wall of the fire box is provided near its upper edge with` a plurality of apertures 30 which connect the air chambers 29with the combustion chamber `immediately above thevfire box. Thus air from the ashpit enterssaid chambers 29 and is heatedtherein and risesupwardly into the combustion chamber. through air openings 30.

The combustion chamber is comparatively large andy extends a suitable distance above the fire door opening 2()` and also above the" Hue outlet 31. This flue outlet islocated in the rear wall 18 substantially on a horizontal level withthe upper half-'of the firey door opening 2 0 and below the dome portion 32 of the combustion chamb er. An elbow 34-is attached totheflue outlet 31 and extends outwardly from the ornamental casing and is provided with a check draft 35. A baffle plate 3,6 is secured to the wall 18 immediately below the flue outlet 31 and lextends upwardly about halfway of said outlet in spaced relation therewith. Thepurpose of thisbaiie plate is to prevent smoke andy gases from passing directly from the Yfire box into said outlet.' Preferably this balile plate, is pro'- vided with a plurality of openings 87.

The upper ends of front wall 17 and rear wall .18 are curved inwardly, as indicated at 17 a and 1 8?, respectively, to form the combustionchamber dome-shaped above; said flue outlet andV said fire door 20. The meeting edges of said curved portions are. flangedv ends ofside walls 19 are alsocurvedas indicated at 19a and have their edges overlying the side edges ofsaid front and rear walls. Similarly the vertical edges of walls 19 are curved as indicated at 19b and overlap the vertical-edges of walls 17 and 18.

Each of side walls 17, 18 and 19 are provided on their opposite sides with vertically disposed ribs 39 arranged in staggered relation the same as ribs 2 7 of the lire box Wall sections26f. Thel use of these ribs permits side walls17, 18 and'19 to be formedcomforces said walls against warpage and breakage. Furthermore the outwardly projecting ribs increase the radiating surfaces of the inner unit.

The front wall 17 -is provided above the lire box 26 with a box-like vextension 40 having arranged in its front walla series of openings 41 kclosed by mica so that the fire in the fire box Vis rendered visible through said openings. A smaller extension 42 is formedin said wall in horizontal plane with air cham-` bers 29 and the front wall of said extension is yprovided with openings which are controlled by a draft check 43. This check has a projection 432l by means of which said check `.paratively thin and at the same time reincan be adj ustedl to regulatethe admission of Y ashpit. `This vextension is' provi-ded with openings controlled by a draft check 45 hav ing a projection 45a for adjustment. By means of this check the admission-of fresh air to the lire box is controlled.

izontally and inwardly projecting flange '15b on Vwhich is removably 'arranged a bottom wall plate 46which forms the bottom for the ashpit. This plate is formed of comparatively heavy material 'and is corrugated forv reinforcement purposes. The ashpit is of suitable size to receive a comparatively large ashpan 47 as shownin dotted-lines in Figures 3and5,-' Y f '1 When the heater is to be usedV as awood stove, the ashpan and the fire box26 are removed and the wood is placed directly on the bottom plate' 46,V whichis Vmade extra heavy especially for this purpose.

The inner unit 11`is completely. enclosed bythe outer casing 10 which is formed ornamental so as to present a neat appearance. This casing comprises a front wall 48, a rear wall'49,and sidewalls 50 and 51, respective- The front wall 48 v'is provided with a grill opening 51 which is arranged-adjacent to openings 41 and is slightly larger than the latterand isof suitable ornamental appearance so as to enhance the effect of Ythe vfire visible therethroug'hf"V -An Yopening 52 is arranged immediately below the .opening 5l V21Ildprefcr'ably forms a The base frame 15 is providedv with a'hor- Y set up in the room and the air is part of the ornamental design thereof. Projecting outwardly through this opening is the handle' or projection 43a whereby draft check 43 can be readily manipulated. An ornamental opening 53 is arranged in wall 48 adjacent to the draft check 45. Projection 45a extends outwardly through this opening and permits manipulation of said ashpit draft check. v

The rea-r wall 49 is provided with an opening 54 through'which the elbowV 34 is projected outwardly from said casing. Side wall 51 has hingedly mounted thereon fire door 21 and ashpit door 24 and is provided with nsuitable door openings for accommodating said doors. The lower edges of the walls 48, 49,50l and 51 rest in the upwardly presented seats formed in the base 13 and the upper edges of said walls receive a top 55 which is of suitable ornamental design and is provided with a grill opening 56 through which the air heated during its passage upwardly between the walls of the outer casing 10 and inner'unit 11 is discharged from the heater. I The cold air is admitted into the heater through openings 16 formed in base frame 15 and as said air comes in contact with the outer surfaces of walls 17, 18 and 19 it is heated and caused to rise upwardly and dischargedinto the room throughthe opening 56. Thus the natural circulation of air is l quickly and efficiently heated.

The inner unit 11 has its wall sections formed so as to provide a perfect joint so that no smoke or dust can enter from the combustion chamber into the air circulating passages. The top of the combustion chamber is formed dome shape and the due outlet is arranged a suitable distance below the top so as to insure combustion of the gases in said dome-shaped top. In order to insure this combustion of gasesfresh heated air is supplied to the combustion chamber from air chambers 29 through openings 30 which are arranged above the re level. The supply of freshair to air chambers 29 can be regulatedby means of check draft 43. The arrangement of baille plate 36 shuts off the lower half of the flue outlet from` the lire box so that the hot smoke and hot gases can` not pass directly from the fire box into said flue but have to pass upwardly into the upper part of the combustion chamber before they discharge through the flue outlet. Y l claim:

1. A portable heater comprising in combination a base provided with an kupwardly `presented marginal seat having upwardly eX- tending inner and outer marginal flanges, a

horizontally disposed bottom frame havingy its outer edge formed with av downwardly presented marginal flange resting in said seat in overlapping relation with the inner having its bottomedge resting in said seat in i juirt'aposed relation with the outer flange of said base and the downwardly presented ange of said bottom frame, said casing having a perforate top, an inner unit engaging the inner flange of said bottom frameV and supported vby the latter in spaced relation with said outer casing to provide a vertically disposed air chamber,l the upper end of said inner unit being formed dome-shaped,v said bottom' frame being provided intermediate its flanges with a plurality of verticallydisposed openings for admitting air into said chamber,- the heated air being discharged through the perforate top of said outer casing7 a fire boi; supported within said inner unit'at a point a substantial distance from the upper dome-shaped end of said inner unit so as to provide a comparatively large combus tion chamber therein, and a' iiue outlet leadfrom said combustion chamber at a point intermediate of said lire boX and the upper end of said combustion chamber.

2. .-i. `portable heater comprisingin combination abase frame having an upwardly ji/resented marginal seat, a bottom frame arranged within said base frame and havingl posed in said seat, an inner combustion unit 'lil mounted on lsaid bottom frame, a fire-box y removably supported within said inner unit and having its walls formed with-internally and exteriorly projecting vertically disposed ribs arranged in staggered relation with each other, and an ornamental outer unit mounted on said base frame .and enclosing said inner unit, the walls of said units being spaced from each other so as to form vertically disposed air chambers, said bottom frame being provided with openings connected with said air chambers and the top 'ico spaced inwardly from said vertically disposed seat to form a central opening, an in'- ner combustion unit consisting yof sectional walls having their lower edges seated in the seat of said bottom frame, anouter'ornamental casing having its lower edges seated` in the upwardly presented seat of said base unit to form a vertically disposed air cham-` ber, said bottom frame being provided with openings leading into the lower end of said chamber and said out-er ,casing being provided with a perforate top for discharging heated air therefrom, and a corrugated Ybottom wall removably arranged on the hori- 'rontally disposed flange of saidbottom frame Y Y ingsfor said chamber, said inner'unit and tovprovide'abottom for said inner unit.

` 4. Aportable air circulating heater coniprising in combination a base, a bottom frameremovably supported by said base, an inner unit mounted on said bottom frame, an outer ornamental unit mounted on said base in spaced relation with said inner unit tol provide vertically disposed air chambers,

said, outer unit completely enclosing said inner unit and being providedwith a perforate top for discharging hot air from said chambers, said bottom being provided with openings leadinginto the'lower ends of said air chambers, a 'fire box removably arranged in the combustion Vchamber of said inner unit in spaced relation with the walls thereof, said fire box being provided nearits upper edge with aplurality ofapertures so as to permit heated air topass therethrough upwardly into the combustion'chamber at a point above the-fire' level, thewalls of said inner unit beingprovided with inwardly projecting horizontally disposed angesand the upper edges of said lire boxbeing formed with outwardly projecting horizontally disposed anges for engaging the flanges of said inner unit, thereby supporting said lire-box in position, the

the direct passage of gases and smoke from the firev box to said flue outlet whereby gases andfresh air-y aregcaused to collect in the dome-shaped toplof said combustion chamber and are consumed before reaching said flue outlet.

f In a portableV air circulating heater, the combination 'of a base provided with legs and having an upwardly presented marginal seat having vertically and upwardly presented marginal walls, a bottom frame supported by said base, saidbottom Vframe having its i edge formedA with a downwardly presented marginal flangefand disposed in said seat in overlapping relation with the inner wall `of the latter, an outer casing having its bottom Y frame being providedwith an upwardly presented flange spaced, from the marginal flange thereof, the space between said fiangesbeing `provided with vertically disposed openings,

an inner unit havingits-bottom Iedge resting on said bottom frame in Juxtaposed relation with theinner flange thereof, thereby forining avertically disposed chamber between said casi-ng and said inner unit, the openings in said bottom frame forming inlet openings for said chamber `andV the upper end of said casing being perforate to form outl-et open.

said outer casing being 'formed with coinciding openings to provide access to said inner 'unit and doors for 'closino said openings'.

6. In a portable circulating heater of the class described, the combination of a base including legs and having a horizontally disposed upwardly presented V' marginal'channel seat, a bottomfraine supported by said base and having its outer .edge terminating in a downwardly presented peripheralflange disposed in said seat in ovrlapping relation withthe inner wall thereof, an outer vcasing extending upwardly from said basel and having ,its bott-om Vedge resting in said vchannel seat in juxtaposed relation 4with the periph'-V eral flange of'said bottom-frame and with- 'the outer wallof `said seat, an` upwardly YoV presented seat formed in saidibottom frameV in spaced relation with'the outer edge there.-

of, said seat including an upwardlypresented flange, and an inner combustion unit .having its bottom edgeresting in the seat of-said bottom frame in overlapping .relation withl the iiangethereof'andsp'aced from saidcasing to form a vertically disposed chamber, said bottom frame, being yprovided interme-v diate its-outer flange andits inner flange with .a plurality of openings forming inletsfor l edge resting iii said seat between the outer.'Y

wall thereof and-the downwardly presented flange of said bottomframe, said bottom 

